Antifriction bearing



June 23, 1925.

C. E. FULLER ANTIFRICTION BEARING Filed Jan. 11, 1923 i Patented June1925...

PATENT orFlca.

ACIL-AUI!) E; FULLER, F NEW YORK, N. Y.

ANTIFRICTION BEARING.

Application led January 11, 1923. Serial No. 612,014.

To all whomr t may concern: Y

Be it known that I, CLAUD E. FULLER, a citizen of the United States, anda resident of New York, in the county and State of New York, lhaveinvented an Improvement in Antifriction Bearings, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like reference characters on the drawings l0 representinglike parts. l

My present invention relates. to conveyors, and more particularly to ananti-friction roller for gravity conveyors.

In my prior Patent No. 1,487,326, dated March 18, 1924, for an improvedassembling table, I have described and claimed an assembling table forassembling a plurality of rows of bricks in position to be operated uponby a mechanical lifting device, the top of such assembling table beingcomprised of a plurality of paralle-lly arranged grooves or guider-vaysin the bottom of which grooves or guideways are located anti-frictionrollers, such anti-friction rollers being '25 of a character to allowthe bricks as they are guided onto the assembling table to slide alongthe length of the grooves or guideways by gravity. Such bricks are inpractil cally a semi-dry condition; that is, they have just issued froma mechanical drier where the excess of moisture has been driven olf andthe bricks tempered to a degree to allow safe handling and pilingthereof into 'a kiln preparatory to firing the same. Such bricks are,therefore, extremely friable and difficulty has been experienced withthe type of anti-friction rollers heretofore employed because of thetendency of the anti-friction rollers to become clogged with dirt anddust and the stopping of a single anti-friction roller in one of theseries of such rollers located at the bottom of the grooves or troughsin the assembling table is suliicient vto prevent the assembling tablefrom functioning in a suitable manner. Various forms of anti-frictionrollers have been employed and suggested, none of which have beensatisfactory, as all those heretofore employed have been of such aconstruction as not to prevent the accumulation of dirt, dust, grit, andthe like at a vital point.

In my present invention I have designed an improved anti-friction rollerdesigned to obviate the objectionable features herelng provided forguiding such dirt, dust,

and grit away from the rotating member and also the anti-frictionbearing therefor.

The object of my invention, therefore, is an improved anti-frictionroller for use in gravity conveyors and the like.

In the accompanying drawings illustrating'preferredembodiment-s of myinvention, Flg. 1 is a vertical section through one of the side membersof a groove or guideway in `an assembling table showing the method ofassembling the anti-friction rollers 1n position thereon, two of suchrollers being shown;

Fig. 2 is a side elevation of Fig. 1, and

Fig. 3 is a vertical section similar to Fig. 1, but showing a modifiedform` of my invention.

Referring to the drawings, 10 designates an elongated strip or plate ofmetal forming one of the side walls of a longitudinal groove or guidewaysuch, for example, as that shown and described in my patent c0- pendingapplication above referred to, and such strip or wall 10 is providedwith a plurality of spaced perforations 11 lying in a horizontal plane,but one of which perforations being shown.

My improved anti-friction roller comprises a central hub 12 of hardenedsteel perforated to receive a threaded bolt 13 of a diameter suitablefor passage through the perforation 11 in the strip or plate 10. Thishub 12 is provided with a circumferential groove 14 intermediate itsends and in such groove 14 run a plurality of bearing balls 15 shown indotted position in Fig. 2. 16 designates a cup shaped member of anysuitable outside diameter, and the web or flange of this member isforced upwardly, as shownI at 17, into the cup, and the center of suchweb is out away to provide a hole or perforation 18 slightly greater indiameter than the outside diameter of the hub 12. Two of these cupshaped members are utilized in building a complete anti-friction roller,being placed end to end, as shown in Fig. 1, and the webs thereofsecured together in any suitable manner, the portion 17 surrounding thebearing balls'l and forming a ball race therefor.

Theanti-friction roller resulting from the construction above describedis that usually employed heretofore for purposes of this character and.it has been found that dust,-

ameter as the outside diameter of the hub 12,

it being necessary, therefore, in assembling the disc 19 on theanti-friction bearing structure to use considerable force. yOne of thediscs 19 is provided for each of the cup shaped members 16 and the useof such disc insures that any dust, dirt, or grit falling oif theanti-friction rollers 16 will strike a disc 19 and be deilectedaway fromthe opening or perforation 18 in the portion 17 of the cup shapedmembers 16. In assembling my improved anti-friction roller in positionon the elongated strip or plate I utilize the threaded bolt 13 whichpasses through the opening 11 and place on the outer end of suchthreaded bolt 13 another anti-friction roller of the construction abovedescribed, holding both such anti-friction roller structures inposition, one on each side of the strip or plate 10, by means of the nut20. rIhe hubs 12 are therefore stationary as are also the discs 19 Whilethe cup shaped members forming the anti-friction roller proper areallowed to freely rotate on the bearin balls 15.

In B ig. 3 I have illustrated a modification of my invention abovedescribed, such modiication consisting of a disc 21 pressed on, andsecured to, the hubs 12 in the manner above described with respect tothe d-isc 19 but the outer periphery of such disc 21 is flared upwardlyand outwardly, terminating in a point in alinement with the top of thecup shaped members 16 as designated by the numeral 22. An anti-frictionroller constructed according tothe modification illustrated in Fig. 3operates in identically the same manner as the anti-friction rollerillustrated in Fig. 1.

While I have necessarily shown and described the preferred embodimentsof my invention somewhat in detail, it is to be understood that I mayvary the arrangement and construction of parts comprising my devicewithin wide limits without departing from the spirit of the invention.

Having thus described my invention, what I claim as new is:

An improved anti-friction roller comprising a stationary' hub, coneshaped dust and dirt excluding discs mounted on said hub and converginginwardly at their peripherics to define a substantially circular coneshaped chamber, and a wheel having its body portion lying in thesubstantially circular conc shaped chamber and having its peripherylying in a cylinder and housing the periphery of the dust excludingcones.

In testimony whereof, I have signed my name to this specification.

CLAUD E. FULLER.

